MATERIAL FOR PROTECTIVE COATINGS ON HIGH TEMPERATURE-RESISTANT CHROMIUM OXIDE-FORMING SUBSTRATES, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

摘要

The invention relates to a material for the formation of high temperature-resistant protective coatings on chromium oxide-forming substrates, a production method, and a use of said materials. Said material is suitable for use as a chrome vaporization protective coating for chrome-containing metal alloys at high temperatures. The aim of the invention is to provide a material for use as a protective layer for high temperature-resistant, chromium oxide-forming alloys, said material being permanently mechanically and thermally stable and ensuring high electrical conductivity at the operating temperature of a fuel cell. According to the invention, the material comprises a spinel phase and an oxidic secondary phase that is preferably formed by a manganese-containing oxidic compound.